Amazon sales ranking of each one’s last (we hope) book:
1. Trump 161
2. Carson 646
3. Cruz 2636
4. Rubio 10,837
5. Rand 19,168
6. Fiorina 33,680
7. Huckabee 46,678
8. Santorum 268,153
9. Christie 291,222
10. Kasich 605,602
November 20, 2015